The effect of the 2D gravity on the β-functions of a non-linear σ-model

Diamandis, GA; Georgalas, BC; Lahanas, AB; Papantonopoulos, E

dc.contributor.author	Diamandis, GA	en
dc.contributor.author	Georgalas, BC	en
dc.contributor.author	Lahanas, AB	en
dc.contributor.author	Papantonopoulos, E	en
dc.date.accessioned	2014-03-01T01:41:17Z
dc.date.available	2014-03-01T01:41:17Z
dc.date.issued	1992	en
dc.identifier.issn	03702693	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23448
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-13844280147&partnerID=40&md5=701e5649354345b3adeb1b4953aa59ab	en
dc.title	The effect of the 2D gravity on the β-functions of a non-linear σ-model	en
heal.type	journalArticle	en
heal.publicationDate	1992	en
heal.abstract	We study the β-functions of a non-linear σ-model coupled to two-dimensional gravity. Keeping the two-dimensional geometry classical, we present, in the light cone gauge, a simple diagrammatic derivation of the induced 2D gravitational action from the non-linear σ-model. Quantizing the two-dimensional geometry, we discuss the gravitational dressing of the β-functions, and establish the equivalence of the conformal and light cone gauges in a consistent dimensional regularization scheme. By a direct calculation in the light cone gauge we find that the β-functions receive gravitational corrections in conformity with that obtained from a (D+1)-dimensional σ-model in the conformal gauge.	en
heal.journalName	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics	en
dc.identifier.volume	277	en
dc.identifier.issue	4	en
dc.identifier.spage	398	en
dc.identifier.epage	404	en